Can anyone recommend a rattle can engine paint available in California that is in the ball park of highway yellow? This is for a 4R D6 main engine block that was baked and hot tanked. The block is completely bare. This isn't a restoration.

Thanks!

Rustoleum Caterpillar yellow. I bought the last couple my local tractor supply had. You might have to get your dealer to order it for you, I did. The brush on quarts are much more economical and for cast iron, the brushed on looks good. Elton

Use Cat yellow primer first.

I hadn't thought of brush-on, which is probably more suitable to my skill level. Thanks, Elton, for the tip.

Rome K/G, is that a rustoleum product, too?

-oil based enamel is hard to beat for steel and equipment, very durable and looks good
-a quart goes a long way and if you need to thin it a little you can use a dash of mineral spirits, acetone etc..
-with a good brush the results can be surprising

-last quart i bought was Rust Check brand, happy with it

Caterpillar brand primer, good for a primer because its already yellow, brown, red or gray primer always shows the scratches.

dont use acetone or lacquer thinners in enamel paint it will curdle it. use proper enamel thinner, mineral turps or shellite. (shellite dries very slow and gives a really high gloss shine after it cures for month if you gently polish it).

here's the secret to brushing on enamel paint, 1. paint on a cool day in the shade and warm the paint by standing the tin in hot water.
2. to even out brush marks give it a finish stroke once you have coverage and dont try for full coverage on the first coat.

you can get a similar effect and get better adhesion even on glass by adding penertrol to the paint (oil based paint only). it also makes paint go further as it is the same oil used to make oil based paint.

as rome suggested use tinted primer it makes your top coat brighter as it hasnt got to cover the other colour first side benefit you use less top coat. want brighter colours use white primer particulary with red colours it makes em pop really well. you can tint undercoat buy adding a little of your top coat to it provided they are the same type of paint alkyd enamels
with alkyd enamels, acrylic lacquer with acrylic lacquer etc.

any good paint store will be able to supply you equipment enamel in whatever colour you want as they will mix it for you also most brands have a old cat yellow, Deere green, International red etc besides highway yellow is a DOT standard colour and is used for school buses and other road maintenance vehicles.

-plenty of you-tubers spraying enamel paint with cheap spray guns, with various thinners, looks pretty easy and forgiving...
-the proper thinner for enamels are called reducers...

the terms reducer or thinner are used interchageably. i have tins with either label it depends on the manufacturer.

yes some general purpose thinners can be used with enamels but test first. pour a little paint into a clean jar or tin and add a little of the thinner if it reacts cant use it.

and no you dont need a flash wizbang $500 dollar or more spray gun the 100 dollar ones work just fine.